Module 4 Lesson 6.notebook
February 24, 2016
Module 4, Lesson 6
Fluency with Percents
Homework
Problem Set 6 #1-9
Do Now:
Exit Ticket Lesson 5
Exit Ticket
1. A tank that is 40% full contains 648 gallons of water. Use the formula
to find the capacity of the water tank.
2. Loretta picks apples for her grandfather to make apple cider. She
brings him her cart with 420 apples. Her grandfather smiles at her and
says, "Thank you Loretta." That is 35% of the apples that we need." How
many apples do they need?
Module 4 Lesson 6.notebook
Homework Solutions
February 24, 2016
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1. Tanner collected 360 cans and bottles while fundraising for his baseball
team. This was 40% of what Reggie collected. How many cans and
bottles did Reggie collect?
2. Emilio paid $287.50 in taxes to the school district that he lives in this
year. This year's taxes were a 15% increase from last year. What did
Emilio pay in school taxes last year?
3. A snowmobile manufacturer claims that its newest model is 15% lighter
than last year's model. If this year's model weighs 799 lb., how much did
last year's model weigh?
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4. Student enrollment at a local school is concerning the community
because the number of students has dropped to 504, which is 20%
decrease from the previous year. What was the student enrollment the
previous year?
5. The color of paint used to paint a race car includes a mixture of yellow
and green paint. Scotty wants to lighten the color by increasing the
amount of yellow paint 30%. If a new mixture contains 3.9 liters of
yellow paint, how many liters of yellow paint did he use in the previous
mixture?
Module 4 Lesson 6.notebook
6. Alexis and Tasha challenged each other to a typing test.
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Alexis typed 54 words in one minute, which was 120% of what
Tasha typed. How many words did Tasha type in one minute?
7. Yoshi is 5% taller today than she was one year ago. Her current height
is 168 cm. How tall was she one year ago?
Opening Exercise
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Cory and Everett have collected model cars since the third grade. Cory
has 80 model cars in his collection, which is 25% more than what Everett
has. How many model cars does Everett have?
Module 4 Lesson 6.notebook
Example 1: Mental Math and Percents
February 24, 2016
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a. 75% of the students in Jesse's class are 60 inches or taller. If there
are 20 students in her class, how many students are 60 inches or taller?
b. Bobbie wants to leave a tip for her waitress equal to 15% of her bill.
Bobbie's bill for her lunch was $18. How much money represents 15% of
the bill?
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3. At a playoff basketball game, there were 370 fans cheering for school
A and 555 fans cheering for school B.
a. Express the number of fans for school A as a percent of the number
of fans for school B.
b. Express the number of fans for school B as a percent of the number
of fans for school A.
c. What percent more fans were there for school B than for school A?
Module 4 Lesson 6.notebook
February 24, 2016
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5. A plant in Mikayla's garden was 40 inches tall one day and was 4 feet
tall one week later. By what percent did the plant's height increase over
one week?
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6. Loren must obtain a minimum number of signatures on a petition before
it can be submitted. She was able to obtain 672 signatures, which is 40%
more than she needs. How many signatures does she need?
Module 4 Lesson 6.notebook
February 24, 2016
Closing
Describe how to mentally find the whole value if 15
is 30% of the number.